Fighting Off Jet Lag

Updated June 28, 2006 12:01 a.m. ET

After an overnight flight, American Airlines flight attendant Rosemary Wharton wears sunglasses on the ride from the airport so she can sleep when she gets to her hotel. Otherwise, bright light makes her too alert.

Once there, she usually naps for a few hours but makes sure not to sleep too long so she can adjust faster to the new time. Ms. Wharton stays hydrated before each flight so her body can recover quickly, but avoids drinking too much during the flight so she can sleep instead of going to the bathroom a lot. Ms....